The punishment phase of the trial begins Thursday. Bradden faces up to life in prison, KXAS-TV (NBC5) reported.

Update at 12:45 p.m. on Thursday: Revised to include sentencing information.

An ex-solder was sentenced to 75 years in prison this week for killing a good Samaritan outside an Arlington drugstore in May 2016.

Crystal and T.J. Antell(via Facebook)

Ricci Chambless Bradden, 24, was accused of wounding his wife, who worked at the Walgreens, and fatally shooting Anthony "T.J." Antell Jr., a 35-year-old Marine and father.

Bradden faced up to life in prison, KXAS-TV (NBC5) reported, but he was sentenced to 20 years in prison for shooting his wife and 75 years in prison for shooting Antell. The two sentences will run concurrently, the Tarrant County DA's office said.

Bradden's wife testified against him during his trial. Antell's wife also testified.

WFAA reports Bradden said he acted in self defense when he shot Antell.

"He pointed a gun at my head and when I got out of the truck, he looked away for a split second, I don't know why," Bradden said, according to WFAA. "I did what I had to do. I'm sorry for what happened."

Bradden's attorney, Pete Schulte, has said on Twitter that he plans to appeal the murder verdict.

First off, I have high regard for Judge Louis Sturns in FTW. I obviously disagree with his ruling on finding my client, Ricci Bradden, guilty of murder. We will appeal as the “Castle doctrine” needs some appellate cases to give judges more direction on some provisions of the law.

Bradden's wife, Quinisha Johnson, said a selfie set off an argument with Bradden, who went to the Walgreens in the 5600 block of New York Avenue on May 2 to confront her about it.

Ricci Bradden

Johnson told WFAA-TV (Channel 8) that Bradden was upset about the photo she had posted to Facebook that showed her cleavage. He accused her of trying to get attention.

She said she tried to walk off, but Bradden pulled out a gun and shot her in the ankle, according to an arrest warrant.

When she went into the Walgreens to get help, Antell intervened.

Police said Antell grabbed a gun from his car and pointed it at Bradden's car.

Bradden told his Army supervisors that an armed man ran up and told him to drop his gun. He said he knocked the gun out of Antell's hand and shot him, according to the arrest warrant.

After the shooting, Bradden fled but later confessed and turned himself in, police said. He has been in the Tarrant County Jail.

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Antell, the owner of an Arlington CrossFit gym and father of three, died of multiple gunshot wounds, according to the Tarrant County medical examiner.

In court Tuesday, Crystal Antell said she was at her husband's side when he died, NBC5 reported.

"I ran out of the car and I ran to him. And I was on top of him and I was trying to hold him and I was yelling for help and no one would help me and I was just screaming for someone to help me," she said.

She described Bradden as "eerily calm" in the moments before the shooting and said her husband "didn't have a chance."

"And then the guy got in the car, slammed the door and peeled off, like it didn't matter," Crystal Antell said.

"I will never forget him. I will always pray for his family and friends to heal and forgive me for this," she said. "He was a great man from what I have read and videos I have seen of him. Forever in my heart Mr. T.J Antell."

Claire Cardona, Breaking News Producer. Claire joined The Dallas Morning News as an intern in 2012. She now writes about crime, other breaking news and the Dallas Zoo. She grew up in New Orleans and graduated with a journalism degree from the University of Texas at Austin.